Method and device for mobile object information management, and computer product

1. A non-transitory computer-readable storage medium storing a computer program that makes a computer execute: obtaining a first image by photographing identification information of a mobile object; executing a character recognition process on the first image to obtain a plurality of candidates of a first character recognition result; determining recognition accuracy of all of the candidates; registering, all of the candidates, when the recognition accuracy of all of the candidates is lower than a predetermined level; displaying all of the candidates registered simultaneously on a display unit; obtaining a second image by photographing identification information of a second mobile object; executing a character recognition process on the second image to obtain a second character recognition result whose recognition accuracy is higher than the predetermined level; comparing each of the registered candidates with the second character recognition result to determine a matching candidate that matches the second character recognition result; and switching a display on the display unit from all of the displayed candidates to the matching candidate.

2. The non-transitory computer-readable storage medium according to claim 1 , wherein the registering includes registering a candidate as the first character recognition result, when the recognition accuracy of the candidate is higher than the predetermined level.

3. The computer-readable storage medium according to claim 1 , wherein the computer program further makes the computer execute: predicting a destination range of the first mobile object within a predetermined time, when the candidates are registered.

4. The non-transitory computer-readable storage medium according to claim 3 , wherein the comparing includes determining whether a position of the second mobile object is within the destination range predicted, and if the position of the second mobile object is within the destination range predicted, the comparing determines the matching candidate.

5. A mobile object information management device comprising: a photographing unit that obtains a first image by photographing identification information of a first mobile object and, after obtaining the first image, obtains a second image by photographing identification information of a second mobile object; a character recognizing unit that executes character recognition processing on the first image to obtain a plurality of candidates of a first character recognition result and executes character recognition processing on the second image to obtain a second character recognition result whose recognition accuracy is higher than a predetermined level; an accuracy determining unit that determines recognition accuracy of all of the candidates; a recognition result registering unit that registers all of the candidates, when the recognition accuracy of all of the candidates is lower than the predetermined level; a character recognition result output unit that simultaneously displays all of the candidates registered; and a match determining unit that compares each of the registered candidates with the second character recognition result to determine a matching candidate that matches the second character recognition result, wherein the character recognition result output unit switches a display from all of the displayed candidates to the matching candidate.

6. The device according to claim 5 , wherein the recognition result registering unit registers a candidate as the first character recognition result, when the recognition accuracy of the candidate is higher than the predetermined level.

7. The device according to claim 5 , further comprising: a destination range predicting unit that predicts a destination range of the first mobile object within predetermined time, when the candidates are registered.

8. The device according to claim 7 , wherein the match determining unit determines whether a position of the second mobile object is within the destination range predicted, and if the position of the second mobile object is within the destination range predicted, the match determining unit determines the matching candidate.

9. A mobile object information management method comprising: obtaining a first image by photographing identification information of a first mobile object; executing a character recognition process on the first image to obtain a plurality of candidates of a first character recognition result; determining recognition accuracy of all of the candidates; registering all of the candidates, when the recognition accuracy of all of the candidates is lower than a predetermined level; displaying all of the candidates registered simultaneously on a display unit; obtaining a second image by photographing identification information of a second mobile object; executing a character recognition process on the second image to obtain a second character recognition result whose recognition accuracy is higher than the predetermined level; comparing each of the registered candidates with the second character recognition result to determine a matching candidate that matches the second character recognition result; and switching a display on the display unit from all of the displayed candidates to the matching candidate.

10. The method according to claim 9 , wherein the registering includes registering a candidate as the first character recognition result, when the recognition accuracy of the candidate is higher than the predetermined level.

11. The method according to claim 9 , further comprising: predicting a destination range of the first mobile object within a predetermined time, when the candidates are registered.

12. The method according to claim 11 , wherein the comparing includes determining whether a position of the second mobile object is within the destination range predicted, and if the position of the second mobile object is within the destination range predicted, the comparing determines the matching candidate.

13. A mobile object information management system comprising: a photographing unit that obtains a first image by photographing identification information of a first mobile object and, after obtaining the first image, obtains a second image by photographing identification information of a second mobile object; a character recognizing unit that executes character recognition processing on the first image to obtain a plurality of candidates of a first character recognition result and executes character recognition processing on the second image to obtain a second character recognition result whose recognition accuracy is higher than a predetermined level; an accuracy determining unit that determines recognition accuracy of all of the candidates; a recognition result registering unit that registers the candidates, when the recognition accuracy of all of the candidates is equal to or lower than the predetermined level; a character recognition result output unit that simultaneously displays all of the candidates registered; and a match determining unit that compares each of the registered candidates with the second character recognition result to determine a matching candidate that matches the second character recognition result, wherein the character recognition result output unit switches a display from all of the displayed candidates to the matching candidate.

14. A mobile object information management method comprising: obtaining a first image of a first mobile object; recognizing characters on the first image to obtain a plurality of candidates of a first character recognition result; displaying all of the candidates on a display unit; obtaining a second image of a second mobile object; recognizing characters on the second image to obtain a second character recognition result whose recognition accuracy is higher than a predetermined level; comparing each of the registered candidates with the second character recognition result to determine a matching candidate that matches the second character recognition result; and switching a display on the display unit from all of the displayed candidates to the matching candidate.